code: def set_active(manager):
      oldQue = Gcf._activeQue[:]
      Gcf._activeQue = []
      for m in oldQue:
          if m != manager:
              Gcf._activeQue.append(m)
      Gcf._activeQue.append(manager)
      Gcf.figs[manager.num] = manager
  
file_path: nupic-legacy/external/linux32/lib/python2.7/site-packages/matplotlib/_pylab_helpers.py
imports: import sys, gc
label_desc: Use image node_id 7 for calling the Gcf obj's underlying member method code with example usage: obj.set_active(manager) without return types